18328750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 80

約数和(自身を含む): 39587328

約数和(自身を除く): 21258578

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 43, 50, 55, 62, 86, 110, 125, 155, 215, 250, 275, 310, 341, 430, 473, 550, 625, 682, 775, 946, 1075, 1250, 1333, 1375, 1550, 1705, 2150, 2365, 2666, 2750, 3410, 3875, 4730, 5375, 6665, 6875, 7750, 8525, 10750, 11825, 13330, 13750, 14663, 17050, 19375, 23650, 26875, 29326, 33325, 38750, 42625, 53750, 59125, 66650, 73315, 85250, 118250, 146630, 166625, 213125, 295625, 333250, 366575, 426250, 591250, 733150, 833125, 1666250, 1832875, 3665750, 9164375, 18328750]

約数ペア:

[(1, 18328750), (2, 9164375), (5, 3665750), (10, 1832875), (11, 1666250), (22, 833125), (25, 733150), (31, 591250), (43, 426250), (50, 366575), (55, 333250), (62, 295625), (86, 213125), (110, 166625), (125, 146630), (155, 118250), (215, 85250), (250, 73315), (275, 66650), (310, 59125), (341, 53750), (430, 42625), (473, 38750), (550, 33325), (625, 29326), (682, 26875), (775, 23650), (946, 19375), (1075, 17050), (1250, 14663), (1333, 13750), (1375, 13330), (1550, 11825), (1705, 10750), (2150, 8525), (2365, 7750), (2666, 6875), (2750, 6665), (3410, 5375), (3875, 4730)]